单项选择题
A．where B．to which C．which D．for which
Not until his father came back,（）to bed. A．did the boy ...
单项选择题Not until his father came back,（）to bed.
A．did the boy go B．went the boy C．the boy goes D．the boy did go
My sister has been working in that factory ever（）it was...
单项选择题My sister has been working in that factory ever（）it was set up.
A．since B．while C．when D．fill
Hurry up! Otherwise the play（）by the time we got there....
单项选择题Hurry up! Otherwise the play（）by the time we got there.
A．will start B．will have started C．has started D．starts
